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Security Advisories: MDE2OlNlY3VyaXR5QWR2aXNvcnlHSFNBLTZmNTQtM3FyOS1wamdq

Unauthenticated Access Via OAI-PMH

Impact

Media publication via OAI-PMH allows unauthenticated public access to all media and metadata by default. OAI-PMH is part of the default workflow and is activated by default, requiring active user intervention of users to protect media. This leads to users unknowingly handing out public access to events without their knowledge.

Patches

The problem has been addressed in Opencast 7.6 and 8.1 where the OAI-PMH endpoint is configured to require users with ROLE_ADMIN by default. In addition to this, Opencast 9 removes the OAI-PMH publication from the default workflow, making the publication a conscious decision users have to make by updating their workflows.

Workarounds

In the organization security configuration (etc/security/mh_default_org.xml), change the roles required for accessing /oaipmh from ROLE_ANONYMOUS to ROLE_ADMIN.

References

For more information

If you have any questions or comments about this advisory:

Permalink: https://github.com/advisories/GHSA-6f54-3qr9-pjgj
JSON: https://advisories.ecosyste.ms/api/v1/advisories/MDE2OlNlY3VyaXR5QWR2aXNvcnlHSFNBLTZmNTQtM3FyOS1wamdq
Source: GitHub Advisory Database
Origin: Unspecified
Severity: High
Classification: General
Published: over 4 years ago
Updated: over 1 year ago


CVSS Score: 7.6
CVSS vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:L/A:N

Identifiers: GHSA-6f54-3qr9-pjgj, CVE-2020-5228
References: Repository: https://github.com/opencast/opencast
Blast Radius: 11.5

Affected Packages

maven:org.opencastproject:opencast-oaipmh-api
Dependent packages: 2
Dependent repositories: 33
Downloads:
Affected Version Ranges: >= 8.0, < 8.1, < 7.6
Fixed in: 8.1, 7.6
All affected versions:
All unaffected versions: